Metal rendering shows incorrect color, gputrace shows fragment function returning correct color

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Created Oct ’24

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I'm experiencing a strange issue where I'm seeing black in a metal drawable where it should be a different color. When I capture the frame and inspect the returned value from the fragment function, it's correct, but the drawable isn't.

This screenshot hopefully illustrates the issue.

maps — Hypethros.gputrace - Xcode - 2024-10-31 at 13.47.59@2x.png

I've not found any references to similar issues. I saw something about some out of bounds or NaN values being dropped to 0 (which would be black), but the debugger doesn't indicate this is happening.

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apexskier OP

Oct ’24

Another example from a unit test, where the color isn't black but is definitely not what the fragment shader is returning.

- Xcode - 2024-10-31 at 15.38.24@2x.png

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